212011010111012 has 36 divisors (see below), whose sum is σ = 431606695510620. Its totient is φ = 90859155476544.

The previous prime is 212011010110987. The next prime is 212011010111027. The reversal of 212011010111012 is 210111010110212.

It can be written as a sum of positive squares in 2 ways, for example, as 54233444720896 + 157777565390116 = 7364336^2 + 12560954^2 .

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9502187 + ... + 22678482.

It is an arithmetic number, because the mean of its divisors is an integer number (11989074875295).

Almost surely, 2^{212011010111012} is an apocalyptic number.

It is an amenable number.

212011010111012 is an abundant number, since it is smaller than the sum of its proper divisors (219595685399608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212011010111012 is a wasteful number, since it uses less digits than its factorization.

212011010111012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32214300 (or 32214291 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 212011010111012 its reverse (210111010110212), we get a palindrome (422122020221224).

The spelling of 212011010111012 in words is "two hundred twelve trillion, eleven billion, ten million, one hundred eleven thousand, twelve".